Help with 4 and 5!!!!!

The first five terms of an arithmetic sequence are shown below: 20, 17, 14, 11, 8, . . . let n represent the term number and f(n

VMariaS [17]

For starters, find the common change in the terms, in this case each goes down by 3. This lets you know you're gonna have a -3n in your equation as each term decreases by 3. Your equation should be in f(n)=c+rn form, with r being change in f(n), or -3 in this case. This gives you f(n)=c-3n. Now, solve for c, add 3n to both sides to get f(n)+3n=c. Plug in your n of 1 and f(n) of 20 to get c=20+3(1)=23. Plug in your c to your f(n) formula to get f(n)=23-3n as your f(n) function.

7 0

3 years ago

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Given \tan A=\frac{11}{60}tanA=

Over [174]

Answer: 60/61

Step-by-step explanation:

7 0

3 years ago

The product of 8 and the sum of a number m and 6 is 12.

tensa zangetsu [6.8K]

8 (m+6) =12 is the way to write it

6 0

3 years ago

Select the correct answer. A line each runs from point B through points A and C. First arc, centered at B, cuts line B A at J an

anastassius [24]

In order to make point D as the vertex in the construction as triangle ABC, the third arc should cross the second arc.

In Geometry, an arc can be defined as a trajectory that is generally formed when the distance from a given point has a fixed numerical value.

In order to make point D as the vertex in the construction as triangle ABC, you must ensure that the third arc crosses the second arc as illustrated in image attached below.

Read more on arc here: brainly.com/question/20594692

#SPJ1

6 0

2 years ago

The graph below shows the amount of money left in the school’s desk fund, f, after d desks have been purchased.

jeka94

Answer:

$ 110

Step-by-step explanation:

The points on the graph are:

(0, 700), (1, 590), (2, 480), (3, 370), (4, 260), (5, 150), (6, 40)

Since, the x-axis represents the number of desks purchased and y-axis represent the amount left in the fund, the first point in the above pairs represent the number of desks purchased and second point represents the amount left in the funds after purchasing that many desks.

The first pair: (0, 700)

This shows when no desk is purchased the amount in the college fund is $ 700.

The second pair: (1, 590)

This shows when 1 desk is purchased, the amount in the college fund is reduced to $ 590.

So, the decrease in the desk fund after purchasing 1 desk = $700 - $590 = $ 110

Any two pairs from the given ordered points can be used to find this number, the result will be the same in all cases.

So, for each new desk that is purchased, the amount of money left in the school’s desk fund decreased by $ 110.

7 0

3 years ago

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